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Re: [TowerTalk] Wire antenna?

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Wire antenna?
From: David Gilbert <xdavid@cis-broadband.com>
Date: Tue, 2 Jul 2019 10:49:28 -0700
List-post: <mailto:towertalk@contesting.com>


All true, but I'd bet that the folks who think an end fed wire makes a good all band antenna don't much care about pattern.  If they can feed it and make random contacts without burning up their rig they're happy.

For me, I want to know (and be able to control) where my RF is going.

73,
Dave   AB7E


On 7/2/2019 8:49 AM, Richard (Rick) Karlquist wrote:


This just reinforces the notion that the
EFHW should be considered a single band antenna, on
the frequency where the wire length produces half
wave resonance, as indicated by a high resistive
drive impedance.  This will be a few percent less
than a half wave in free space.

For higher frequencies, the "magic" goes away and
it becomes a glorified "random wire" requiring a legitimate
counterpoise.

Random wires (> 1/2 wave) have random patterns!

Rick N6RK

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